The flashing looks like it was chewed by a beaver at the bottoms, but is installed correctly. The flags should be pop riveted together, IMHO, which would make them hug the wall.
Most of the rest of the stuff is a little sloppy, but will probably lay down after a few days of direct sun. I'd just about have to be on the roof to make a call on some of those items. Look at them in a week and see if some of the unevenness has gone away.